A crew works with freshly poured concrete on a driveway in Indianapolis. Driveway extension ideas for homeowners looking to extend or expand a concrete or asphalt driveway. You purchased a new RV or maybe your teenager started to drive. If your existing driveway doesn't provide enough room for any number of reasons, you may need to widen or extend your driveway to better suit your needs.
Vitamins are conventionally divided into the fat-soluble group A, D, E and K, and the water-soluble group, vitamin C (ascorbic acid) and the B vitamins-B 1 (thiamine), B 2 (riboflavine, riboflavin), nicotinic acid, B6 (pyridoxine), pantothenic acid, biotin, folic acid and B12.
A vitamin is a small molecule that your body needs to carry out a certain reaction. Your body has no way to create vitamin molecules itself, so the vitamin molecules must come in through food that you eat. The human body is known to need at least 13 different vitamins:Inside the body, vitamins are used in many unique ways. For example, one of vitamin A's main roles is in the production of retinal. Retinal is used within the rods and cones in your eyes to sense light.he body is able to store some vitamins, such as vitamin A (up to a year's supply is stored in your liver). Other vitamins need to be re-supplied frequently. 1  Vitamins. 2  Prenatal Vitamins. 3  How Vitamin A Works. 4  How B Vitamins Work.